1-How many moles of phosphine (PH3 ) are produced for every 4.0 moles of hydrogen that react according to the chemical equation below?
3H2 + P2 => 2PH3
2 -Combustion analysis of 1.200 g of an unknown compound containing carbon, hydrogen, and oxygen produced 2.086 g of CO2 and 1.134 g of H2O. What is the empirical formula of the compound?